Sectional sheet-metal pulley.



PATRICK D. SKAHEN, OF SYRACUSE, NEW YORK.

SECTIONAL SHEET-METAL PULLEY.

Specification of Letters Patent.

Patented April 6, 1908.

Application filed February 26, 1907. Serial No. 359,384.

To all whom it may concern:

Be it known that I, PATRICK D. SKAHEN, a citizen of the United States,and resident of Syracuse, Onondaga county, State of New York, haveinvented certain new and useful Improvements in Sectional Sheet- MetalPulleys, of which the following is a specification.

The present invention relates to improvements in pulleys andparticularly to pulleys made of metal suitably stamped or pressed intothe desired form; and will be described in connection with theaccompanying drawing, in which,

Figure 1 is a side elevation, partly in section on the line 1-1 of Fig.2, of a sectional pulley constructed in accordance with the presentinvention; Fig. 2 is a plan view of one section of the pulley, or asectional view on the line 22 of Fig. 1; Fig. 3 is a detail sectionalview, on the line 33 of Fig. 2; Fig. 4: is an inner face view of aportion of the rim of the pulley, showing the parts represented in Fig.3.

Referring to the drawing it will be seen that the pulley comprises twosimilar halves, each including a hub member, a rim member and spokesconnecting said hub and rim members, said halves being detachablyconnected by bolts 1 extending through lugs projecting inwardly from therim members adjacent the meeting ends thereof. As shown each rim memberis formed of two plates or sections, the outer section 2 being widerthan the inner section 3 and having its side edges bent or folded uponitself and against the inner face of the inner section 3, whereby thepulley rim is provided with side flanges or beads of greater thicknessand strength than the body of the rim. The

hub member t of each half is connected with.

the inner ends of the spokes 5 the outer ends of which are riveted tolugs or ears 6 struck up from the inner rim section 3. As shown eachspoke is formed by a suitable metal blank bent to provide two legs,which are riveted to lugs 6, and an intermediate portion 7 that extendslongitudinally of the hub member 4 and is attached thereto by suit--able rivets 8.

It will be noticed that by the construction hereinbefore described thepulley is provided with smooth side edges and the spokes are soconnected with the rim and hub members, as to avoid the use of rivets orother fastening means which project beyond or in any way mar the outerrim surface.

The halves of the pulley are also connected by means lying entirelywithin the rim and so attached to the latter as not to weaken or in anymanner affect the outer section 2 of the rim.

As shown the inner rim section of each half of the pulley is providedadjacent each end thereof with a pair of lugs, arranged on oppositesides of the spoke lugs 6 and said lugs on one member of the pulleyaline with the corresponding lugs on the other member and are connectedby bolts 1 as previously described. Each of said lugs 9 is formedintegral with the inner rim section 3 and an angular reinforcing memberor abutment 10, formed by a metal plate, is riveted to the inner rimsection and abuts against said lug or ear 9, suitable alined openingsbeing formed in said lug and abutment for the passage of bolt 1. Inconstructing this portion of the pulley the lug 9 is first cut from thebody of the inner rim section and bent into the desired position. Asimilar lug or ea r 11 is then bent up from the rim section 3 and thebody of the abutment plate 10 is firmly secured thereto, as by rivets12, the parts 11, 10, occupying at this time the position indicated indotted lines in Fig. 3. After the plate 10 has been thus attached to theportion 11 of the inner rim section the latter is forced back to itsoriginal position, the body of the plate 10 extending across theaperture formed in the inner rim section by removing the lug 9 and thefree end thereof abutting against said lug. By this construction it willbe seen that the lugs for the connecting bolts 1 are securely connectedwith the rim of the pulley and that the fastening devices connectingsaid abutments with the rim do not extend through the outer rim section,so that the latter may have a smooth surface throughout its length.

By means of the bolts 1 the two halves of the pulley are securelyconnected; and as will be seen the lugs for such bolts are arrangedrelatively near the sides of the pulley so as not to interfere with thespokes.

A pulley constructed in accordance with this invention has a smoothperiphery which is not broken or weakened in any way by the attachmentof the spokes or the means for connecting the sections of the pulleytogether.

What is claimed is:

1. The herein described pulley comprising a hub, a sheet metal rimhaving a plurality of inwardly extending integral lugs, each lug beingindependent of every other one except for their connection by the curvedrim from which they project, and spokes formed separately from andconnecting the hub and said lugs.

2. The herein described pulley comprising a hub, a sheet metal rimhaving therein a series of incisions and having the portions that arepartly separated from the body bent inwardly to form a plurality ofseparated lugs, and spokes formed separately from and connecting the huband said lugs.

8. The herein described sectional pulley composed of a plurality ofdetachably con nected sections, each section comprising a hub member, asheet metal rim member having a plurality of inwardly extending integrallugs, each separated from the rim except at its outer edge, and spokesconnecting the hub member of each section with the lugs on the rim ofsaid section.

4. The herein described pulley comprising a hub, a metal rim provided atsuitable intervals with a plurality of inwardly extending lugs, saidlugs being arranged in pairs, and spokes each connected with the hub andone pair of said lugs on the rim.

5. The herein described pulley comprising a hub, a metal rim provided atsuitable intervals with a plurality of inwardly extending lugs, saidlugs being arranged in pairs, and spokes each formed from a single metalblank bent to provide two legs, which extend across and are connected tothe members of a pair of said lugs, and an intermediate section which isconnected with the hub.

6. The herein described pulley comprising a hub, a sheet metal rimhaving integral lugs or ears extending inwardly at suitable intervals,said lugs being arranged in pairs, and spokes each formed from a singlemetal blank bent to provide two legs, which extend between and areconnected to the members of a pair of said lugs, and an intermediatesection which is connected with the hub.

7. The herein described pulley consisting of a plurality of sections,each including a hub member, a rim member having an inner sheet metalsection and an outer section suitably connected with said inner section,and spokes connecting the hub and rim members, the ends of the rimmembersof adjacent sections abutting throughouttheir width and each rimmember having adjacent its ends integral lugs extending inwardly fromthe inner sheet metal section, -and means connecting the said lugs ofone pulley section with those of an adjacent section.

8. The herein described pulley comprising a plurality of sections eachincluding a hub member, a sheet metal rim member having integralinwardly extending lugs arranged in two groups, the lugs of one groupextending transversely of the rim and those of the other group extendinglongitudinally of the rim, and spokes connecting the hub member with thelugs that extend longitudinally of the rim member, and means connectingthe transversely extending lugs of one section with the correspondinglugs of the adjacent section.

9. The herein described pulley consisting of a plurality of sections,each including a hub member, a rim member having an inner metal. sectionand an outer section suitably connected with said inner section, spokesconnecting said hub and rim members, the inner metal rim member havinglugs extending toward the hub adjacent its ends, each of said lugs beingreinforced by an abutment attached to the inner rim section,

and means connecting said lugs on one section with those on another.

10. The herein described pulley consisting of a plurality of sections,each including a hub member, a rim member having an inner metal sectionand an outer section suitably connected with said inner section, spokesconnecting said hub and rim members, the inner metal rim member havinglugs extending toward the hub adjacent its ends, an angular abutmentarranged to bear against each of. said lugs, one member of said abutmentbeing attached to the inner rim section, and means connecting said lugson one section with those on another.

11. The herein described pulley, consisting .of a plurality of sections,each including a hub member, a metal rim member, and spokes connectingsaid hub and rim members, the rim member of each section having adjacentits ends lugs formed by bending inwardly portions of its body, abutmentsattached to the rim member and bearingagainst said lugs, and meansconnecting said lugs on one section with those on another.

12. The herein described pulley, consisting of a plurality of sections,each including a hub member, a metal rim member, and connecting saidlugs on one section With spokes connecting said hub and rim memthose onan adjacent section. 10 bers, the rim member of each section having Intestimony whereof I afiiX my signature adjacent its ends lugs formed bybending in presence of tWo Witnesses.

inwardly portions of its body, abutments at- PATRICK D. SKAHEN.

tached to the rim member and extending Witnesses: across the openingsproduced by forming LEWIS P. SMITH,

said lugs to bear against the lugs, and means i V. G. MACKENZIE, Jr.

